헵탄알

헵탄알
헵탄알 구조식 이미지
카스 번호:
111-71-7
한글명:
헵탄알
동의어(한글):
헵탄알
상품명:
Heptaldehyde
동의어(영문):
HEPTANAL;N-HEPTANAL;N-HEPTALDEHYDE;ENANTHALDEHYDE;1-HEPTALDEHYDE;HEPTYL ALDEHYDE;ENANTHAL;FEMA 2541;FEMA 2542;1-HEPTANAL
CBNumber:
CB2451916
분자식:
C7H14O
포뮬러 무게:
114.19
MOL 파일:
111-71-7.mol
MSDS 파일:
SDS

헵탄알 속성

녹는점
-43 °C (lit.)
끓는 점
153 °C (lit.)
밀도
0.817 g/mL at 25 °C (lit.)
증기압
3 hPa (20 °C)
FEMA
2540 | HEPTANAL
굴절률
n20/D 1.413(lit.)
인화점
95 °F
저장 조건
Flammables area
용해도
1.25g/l 불용성
물리적 상태
분말, 결정 또는 덩어리
색상
흰색에서 밝은 노란색-베이지색
냄새
디프로필렌 글리콜 중 1.00%. 신선한 알데하이드 지방 그린 허브 와인-리 오존
?? ??
녹색
Odor Threshold
0.00018ppm
폭발한계
1.1-5.2%(V)
수용성
불용성
감도
Hygroscopic
JECFA Number
95
Merck
14,4658
BRN
1560236
Dielectric constant
9.1(Ambient)
안정성
안정적인. 빛에 민감할 수 있습니다. 가연성 - 공기와 쉽게 폭발성 혼합물을 형성합니다. 강한 산화제, 강염기, 강한 환원제와 호환되지 않습니다.
LogP
2.8 at 20℃
CAS 데이터베이스
111-71-7(CAS DataBase Reference)
NIST
Heptanal(111-71-7)
EPA
Heptanal (111-71-7)
안전
  • 위험 및 안전 성명
  • 위험 및 사전주의 사항 (GHS)
위험품 표기 Xi,N
위험 카페고리 넘버 10-36/37/38-38-50/53
안전지침서 26-36-37-16-61-60
유엔번호(UN No.) UN 3056 3/PG 3
WGK 독일 1
RTECS 번호 MI6900000
자연 발화 온도 250 °C
위험 참고 사항 Irritant
TSCA Yes
HS 번호 2912 19 00
위험 등급 3
포장분류 III
유해 물질 데이터 111-71-7(Hazardous Substances Data)
독성 LD50 orally in Rabbit: > 5000 mg/kg LD50 dermal Rabbit > 5000 mg/kg
기존화학 물질 KE-18269
그림문자(GHS): GHS hazard pictogramsGHS hazard pictograms
신호 어: Warning
유해·위험 문구:
암호 유해·위험 문구 위험 등급 범주 신호 어 그림 문자 P- 코드
H226 인화성 액체 및 증기 인화성 액체 구분 3 경고
H315 피부에 자극을 일으킴 피부부식성 또는 자극성물질 구분 2 경고 GHS hazard pictograms P264, P280, P302+P352, P321,P332+P313, P362
H412 장기적 영향에 의해 수생생물에 유해함 수생 환경유해성 물질 - 만성 구분 3 P273, P501
예방조치문구:
P210 열·스파크·화염·고열로부터 멀리하시오 - 금연 하시오.
P273 환경으로 배출하지 마시오.
P302+P352 피부에 묻으면 다량의 물로 씻으시오.
NFPA 704
2
2 0

헵탄알 C화학적 특성, 용도, 생산

개요

Heptanal has a very strong, fatty, harsh, pungent odor and an unpleasant, fatty taste. Heptanal is obtained by distilling castor oil, preferably under reduced pressure.

화학적 성질

colourless liquid

출처

Heptanal is a constituent of the essential oils of ylang-ylang, clary sage, California lemon, bitter orange, rose and hyacinth Also reported found in cocoa, buckwheat, elderberry fruit and juice and babaco fruit (Carica pentagona Heilborn)

용도

Labelled Heptanal. Bioconversion of heptanal to heptanol by Saccharomyces cerevisiae and effect of C source maltose.

제조 방법

Obtained by distilling castor oil, preferably under reduced pressure.

일반 설명

A colorless, oily liquid with a penetrating fruity odor. Insoluble in water and less dense than water. Hence floats on water. Flash point near 141°F. Used to make perfumes and pharmaceuticals.

공기와 물의 반응

Flammable. Insoluble in water.

반응 프로필

Heptaldehyde may undergo exothermic self-condensation or polymerization reactions in the presence of acids. May generate flammable and/or toxic gases with azo, diazo compounds, dithiocarbamates, nitrides, and strong reducing agents. Is readily oxidized to give heptanoic acid. Can react with air to give first peroxo acids, and ultimately heptanoic acid. These autoxidation reactions are activated by light, catalyzed by salts of transition metals, and are autocatalytic (catalyzed by the products of the reaction). The presence of stabilizers (antioxidants) retards autoxidation. Incompatible with strong oxidizers, bases and reducing agents.

위험도

Combustible.

건강위험

May cause toxic effects if inhaled or absorbed through skin. Inhalation or contact with material may irritate or burn skin and eyes. Fire will produce irritating, corrosive and/or toxic gases. Vapors may cause dizziness or suffocation. Runoff from fire control or dilution water may cause pollution.

화재위험

HIGHLY FLAMMABLE: Will be easily ignited by heat, sparks or flames. Vapors may form explosive mixtures with air. Vapors may travel to source of ignition and flash back. Most vapors are heavier than air. They will spread along ground and collect in low or confined areas (sewers, basements, tanks). Vapor explosion hazard indoors, outdoors or in sewers. Runoff to sewer may create fire or explosion hazard. Containers may explode when heated. Many liquids are lighter than water.

신진 대사

Aldehyde C-7 (heptaldehyde) is readily oxidized in the animal body to the corresponding fatty acid, which then undergoes ?-oxidation and is eventually oxidized to carbon dioxide and water . Boyland was unable to detect pimelic acid in the urine of rats fed heptanal, indicating that the compound was probably completely oxidized in the body. The finding of tumour-inhibiting action by malonic acid supported the possibility of ω-oxidation leading to the formation of glutaric and malonic acids, although the intermediate pimelic acid was not isolated. Yoshida et al. found that heptanal was not utilized as an energy source by chicks when fed at 5% in the diet for 6 days, although the diet was palatable and caused no deaths. Direct evidence was obtained by Erwin & Deitrich for the oxidation in rat, monkey and bovine brain of heptanal and other aldehydes that may arise from biologically active amines in the brain. Aldehyde-oxidizing activity was present in all the areas of bovine brain studied. It was suggested that brain aldehyde dehydrogenase may be important in oxidizing aldehydes from exogenous sources.

Purification Methods

Dry n-heptaldehyde with CaSO4 or Na2SO4 and fractionally distil it under reduced pressure. More extensive purification is by precipitation as the bisulfite compound (formed by adding the aldehyde to saturated aqueous NaHSO3) which is filtered off and recrystallised from hot H2O. The crystals, after being filtered and washed well with H2O, are hydrolysed by adding 700mL of aqueous Na2CO3 (12.5% w/w of anhydrous Na2CO3) per 100g of aldehyde. The aldehyde is then steam distilled off, separated, dried with CuSO4 and distilled under reduced pressure in a slow stream of nitrogen. [McNesby & Davis J Am Chem Soc 76 2148 1954, Beilstein 1 H 695, 1 I 357, 1 II 750, 1 III 2844, 1 IV 3314.]

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